Two O2 sensors?
03-08-2014, 06:16 PM
#1
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Two O2 sensors?
Picked up an obd 1 code reader today and pulled codes on my 1992 f150. Got 41 for O2 sensor. I already guessed it was bad because it was rusted and my bad mpg. Pricing O2 sensor at autozone down the street, they asked whether it was downstream or upstream O2 sensor.
Do I need to replace both, and where is the 'upstream' sensor?
Do I need to replace both, and where is the 'upstream' sensor?
03-08-2014, 06:28 PM
#2
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Picked up an obd 1 code reader today and pulled codes on my 1992 f150. Got 41 for O2 sensor. I already guessed it was bad because it was rusted and my bad mpg. Pricing O2 sensor at autozone down the street, they asked whether it was downstream or upstream O2 sensor.
Do I need to replace both, and where is the 'upstream' sensor?
Do I need to replace both, and where is the 'upstream' sensor?
03-08-2014, 07:05 PM
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Yea I havent heard of it either but three of the seemed to think there is one.
I found the sensor on amazon for half of what they wanted, including feee shippng. I dont see how they can have a 200% markup
I found the sensor on amazon for half of what they wanted, including feee shippng. I dont see how they can have a 200% markup
03-08-2014, 07:37 PM
#4
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Just part of the business, gota make money some how I guess. I went to my local auto parts store for an engine coolant temp sensor and they said it was 50!!! Went online and got one for 16 with shipping. It is nice to walk out of the store with the part but its worth the wait to save that much money
03-08-2014, 10:36 PM
#6
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